IIS + PHP Site not displaying correctly

I have a php website that I've been running on an OLD version of Windows. I am trying to migrate it to a Windows Server 2008 64bit but not having any luck.

PHP is installed and running correctly as when I do the php info file, all the information is displayed.

Here is a print screen of what appears:

==

'); define('_MOBILEGEAR_CATTITLE','Mobile Gear'); define('_MOBILEGEAR_CATBLURB','

Some text

'); define('_SUBSEA_CATTITLE','Subsea Telecom'); define('_SUBSEA_CATBLURB','

more text

===

Essentially it looks like the site and sub menu pages are all being displayed on one page and compressed together.

Any ideas?

Thanks